Title :
Development of NanoCAP (nano composite advanced particles) technology for high density recording
Author :
Sasaki, Y. ; Usuki, N. ; Matsuo, K. ; Kishimoto, M.
Author_Institution :
Div. of Dev. & Technol., Hitachi Maxell Ltd., Kyoto, Japan
Abstract :
In this paper, nanosized spherical magnetite particles, with the coercivity force of about 3000 Oe was developed. This material was named NanoCAP (nano composite advanced particles). This study described both magnetic and structural properties of NanoCAP. The crystal structure and the microstructure of the particles were examined using an X-ray diffractometer and high resolution transmission electron microscope, respectively. The obtained magnetization and coercivity of the particles were 89 emu/g and 2900 Oe, respectively. NanoCAP is expected to be the most promising candidate for ultrahigh capacity recording tapes.
Keywords :
X-ray diffraction; coercive force; crystal microstructure; crystal structure; ferromagnetic materials; iron compounds; magnetic particles; magnetic recording; nanocomposites; nanoparticles; transmission electron microscopy; Fe3O4; X-ray diffractometer; coercivity force; crystal structure; high density recording; high resolution transmission electron microscope; magnetic properties; magnetite particles; magnetization; microstructure; nanocomposite advanced particles; nanosized spherical particles; structural properties; ultrahigh capacity recording tapes; Coercive force; Composite materials; Crystal microstructure; Crystalline materials; Electrons; Magnetic materials; Magnetic properties; Magnetic recording; Nanostructured materials; X-ray diffraction;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464294
